Fuzzy adaptive permanent magnet type constant torque load soft start calculation method

Abstract

The invention provides a fuzzy adaptive permanent magnet type constant torque load soft start calculation method, and relates to the technical field of mechanical transmission. According to the method, firstly, the relation between the air gap of the speed regulation type permanent magnet coupler and the actual opening degree of an angular travel executing mechanism is determined, and a relation mathematical model is stored in a comprehensive control system; before the motor is started, the permanent magnet coupler is in the maximum air gap state, connection between the motor and the constant-torque load speed reducer is cut off, and it is guaranteed that the motor is completely no-load during starting; after the motor is started, the air gap of the permanent magnet coupler is adjusted by adjusting the opening degree of the angular travel executing mechanism, the torque of the constant-torque load is slowly loaded to the motor side, and soft starting of the constant-torque load is achieved. According to the method, after the relational mathematical model of the speed regulation type permanent magnet coupler is written into the comprehensive control system, the speed regulation type permanent magnet coupler can work normally only by setting the starting time on site, the performance of the constant torque load is automatically adapted in the working process, and the requirements of a coal mine are met.

Description

technical field [0001] The invention relates to the technical field of mechanical transmission, in particular to a fuzzy self-adaptive permanent magnet type constant torque load soft start calculation method. Background technique [0002] Belt conveyor is a constant torque equipment used to transport materials, widely used in coal, chemical, petroleum, electric power and other industries. Belt conveyors often start with a load. If there is no reliable soft-start equipment, the conveyor is prone to slippage, tearing and other failures when starting, resulting in production stagnation. [0003] The speed-regulating permanent magnet coupler uses the magnetic field as the transmission medium to realize the mechanical decoupling of the load and the motor. It is installed between the motor and the reducer, and the load is changed by changing the air gap between the copper conductor and the permanent magnet disc. In the running state, it can solve the soft start problem of the bel...

AI Technical Summary

Problems solved by technology

However, due to the limitation of the transfer characteristics of the permanent magnet coupling, if the air gap is not controlled during the load starting process, the load will start in the form of square acceleration, which will be a strong impact on the load and easily cause load damage

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